247496450

素因数分解:

$2^1\times 5^2\times {\mathrm{139}}^1\times {\mathrm{149}}^1\times {\mathrm{239}}^1$

素因数の和:539

約数の個数: 48

約数和(自身を含む): 468720000

約数和(自身を除く): 221223550

約数列:

[1, 2, 5, 10, 25, 50, 139, 149, 239, 278, 298, 478, 695, 745, 1195, 1390, 1490, 2390, 3475, 3725, 5975, 6950, 7450, 11950, 20711, 33221, 35611, 41422, 66442, 71222, 103555, 166105, 178055, 207110, 332210, 356110, 517775, 830525, 890275, 1035550, 1661050, 1780550, 4949929, 9899858, 24749645, 49499290, 123748225, 247496450]

約数ペア:

[(1, 247496450), (2, 123748225), (5, 49499290), (10, 24749645), (25, 9899858), (50, 4949929), (139, 1780550), (149, 1661050), (239, 1035550), (278, 890275), (298, 830525), (478, 517775), (695, 356110), (745, 332210), (1195, 207110), (1390, 178055), (1490, 166105), (2390, 103555), (3475, 71222), (3725, 66442), (5975, 41422), (6950, 35611), (7450, 33221), (11950, 20711)]